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Does your chair sink down throughout the work day? Is it difficult for you to adjust your chair up and down? If you're having these issues, you may need to replace the gas cylinder on your office chair in order to get it to function properly again. Read on to learn how to replace your office chair cylinder.

Chair Gas Cylinder Removal Tools You'll Need

  1. A rubber mallet
  2. A pipe wrench or a screw driver
  3. A replacement cylinder—you can request a new one by contacting NBF’s customer service at 1-800-558-1010 or online.
  4. WD-40 (Only necessary for older chairs or when you're having a difficult time removing parts of the chair.
 

Step 1

Tip the chair onto its side.

 

Step 2

Use the rubber mallet to tap the base of the chair away from the seat of the chair. Do this until you can easily remove the base from the rest of the chair.

 

Step 3: The cylinder will be left. Use the pipe wrench to clamp tightly onto the top of the gas lift and twist and then pull up in order to remove the cylinder. If a pipe wrench is unavailable, you can unscrew the main bolts at the bottom of the seat in order to remove the mechanism from the chair. Then simply use your rubber mallet to tap the mechanism away from the cylinder, thereby separating the cylinder from the mechanism of the chair. If it is difficult at any point to remove these parts in step three, you may need to apply WD-40 to the joints and let it sit for a few minutes. Be sure to cover surrounding surfaces and chair fabrics to protect them before applying WD-40.

 

Step 4

Now that the hydraulic cylinder has been removed, you can replace it with the new one. Insert the bottom of the cylinder into the center of the chair base.

 

Step 5

Carefully lift both the chair base and the chair cylinder into the chair mechanism. The parts will then fasten on their own.

 

Need a visual? Check out our video below for a step-by-step guide to replacing a chair cylinder. Shop our full selection of office chairs for a full replacement, and call our furniture experts at (800) 558-1010 for more help.

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